GE IS400TCASH1AGD Mark VIe PCAA Analog Terminal Board

Product Description

The IS400TCASH1AGD is a PCAA analog terminal board for GE Speedtronic Mark VIe turbine control system. It serves as the field wiring interface for the PCAA analog I/O pack, responsible for signal conditioning, terminal distribution and isolation of thermocouple, RTD, 4–20mA and voltage signals. It transmits process analog signals from sensors to the I/O pack, widely used for gas turbine, steam turbine boiler temperature and process parameter monitoring in power plants.

Features

• Part No: IS400TCASH1AGD, Brand: GE
• PCAA analog terminal board for Mark VIe Speedtronic turbine control platform
• Supports thermocouple, RTD, 4–20mA, ±10V analog signals
• Galvanic isolation between field wiring and control I/O pack to suppress ground loop noise
• Removable screw terminal blocks for convenient field wiring and maintenance
• Channel-level fault detection for open circuit, short circuit and signal failure
• Conformal coating, anti-vibration design to adapt to power plant cabinet environment
• Works with IS230PCAAH1B and other PCAA I/O packs
• Front LED indicators for power and board health status

Applications

• Thermal power plant gas turbine and steam turbine control cabinet
• Boiler, exhaust, bearing temperature monitoring and process analog acquisition
• Compressor, combined cycle power unit safety and control system
• Legacy Mark VIe system spare replacement, overhaul and retrofit
• Power generation turbine control I/O terminal signal distribution

FAQ

Q: What is the difference between IS400TCASH1 and IS400TCASH1AGD?
A: IS400TCASH1 is the base model; AGD is the specific hardware revision variant with optimized circuit and compatibility.

Q: Which I/O pack does it match?
A: It is paired with the PCAA analog I/O pack (IS230PCAAH1B) of Mark VIe.

Q: Is this board discontinued?
A: Mark VIe series is legacy turbine control hardware, original production stopped, supplied as surplus, refurbished and tested spare parts only.

Q: Can it work independently without PCAA pack?
A: No, it is only a terminal board, it must cooperate with the PCAA I/O pack to complete signal sampling.